Inferential Statistics
Week 1 Lab Quiz Answer
About this Course
Inferential Statistics
This course is part of the Statistics with R Specialization
In this article, i am gone to Share Inferential Statistics Week 1 Lab Quiz Answer Coursera.
Week 1 Lab
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Question 1)
Which of the following is false?
- The distribution of areas of houses in Ames is unimodal and right-skewed.
- 50% of houses in Ames are smaller than 1,499.69 square feet.
- The middle 50% of the houshe range between approximately 1,126 square feet and 1,742.7 square feet.
- The IQR is approximately 616.7 square feet.
- The smallest house is 334 square feet and the largest is 5,642 square feet.
Question 2)
Suppose we took two more samples, one of size 100 and one of size 1000.
Which would you think would provide a more accurate estimate of the
population mean?
- Sample size of 50
- Sample size of 100
- Sample size of 1000
Question 3)
How many elements are there in this object called
sample_means_small?
- 0
- 3
- 25
- 100
- 5,000
Question 4)
Which of the following is true about the elements in the sampling
distributions you created?
- Each element represents a mean square footage from a simple random sample of 10 houses.
- Each element represents the square footage of a house.
- Each element represents the true population mean of square footage of houses.
Question 5)
It makes intuitive sense that as the sample size increases, the
center of the sampling distribution becomes a more reliable estimate
for the true population mean. Also as the sample size increases, the
variability of the sampling distribution
- decreases
- increases
- stays the same
Question 6)
Which of the following is false?
- The variability of the sampling distribution with the smaller sample size (sample_means50) is smaller than the variability of the sampling distribution with the larger sample size (sample_means 150).
- The means for the two sampling distributions are roughly similar.
- Both sampling distributions are symmetric.
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Inferential Statistics All Week Lab Quiz Answer
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Inferential Statistics All Week Quiz Answer
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